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Inventions MCQs – Mock Test 89

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MCQ 441: Which one of the following invents Ac and DC?

  1. Sir Nikola Tesla
  2. Sir Otto Blathy
  3. Sir Alexander Graham Bell
  4. both a and b

MCQ 442: In which one of the following year, the pressure cooker was patented?

  1. 1657
  2. 1643
  3. 1645
  4. 1679

MCQ 443: In which one of the following year, the silicon chip blood analyzer was invented?

  1. 1940
  2. 1937
  3. 1922
  4. 1986

MCQ 444: The microscope was invented by:

  1. Sir Peter Henlein
  2. Sir Galileo Galilei
  3. Sir Zacharias Janssen
  4. Sir William kennedy Dickson

MCQ 445: The first rapid fire firearm was a Gatling gun invented by:

  1. Sir Richard Jordan Gatling
  2. Sir Henry W. Seelay
  3. Sir Schuyler Skaats Wheeler
  4. Sir Samuel W. Francis

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